A 13 ft ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft from the house, the base is moving at the rate of 5 ft/dec. (6 mark)
a) How fast is the top of the ladder sliding down from the wall then?
b) At what rate is the area of the triangle formed by the ladder, wall, and ground
changing then?​

My spanish teacher said to make these sentences into "ar" verb conjugations. can someone plz me with that? 1. ellos están en la computadora 2. la chicas están estudia 3. la chicas están hablamos 4. el ojo de el señor es marrón 5. la muchacha es feliz 6. la muchacha cantar

Question 10 (fill-in-the-blank worth 1 points) susana cruza la calle en el paso de answer for blank 1:

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."